When an image is actually consisting of a sequence of smaller images, sometimes white lines appear between the smaller images.

Add rotate view button.

To reproduce:
- Just show and close a form that contains pdf viewer with a loaded document several times. 

Handled InvalidDataException occurs while Zip Library tries to decompress wrongly decrypted stream.

Import documents that use this type of encryption. Currently, a handled NotSupportedEncryptionException with message "The encryption method with code 5 is not supported." is thrown while importing such a document.

Workaround: subscribe the RadPdfViewer control to the ViewerModeChanged event and in the handler, if the viewer mode is set to Pan, call the HideCaret method of the PdfViewerElement
private void radPdfViewer1_ViewerModeChanged(object sender, EventArgs e)
{
    if (this.radPdfViewer1.ViewerMode == Telerik.WinControls.UI.FixedDocumentViewerMode.Pan)
    {
        this.radPdfViewer1.PdfViewerElement.HideCaret();
    }
}

Workaround: update manually the RadPdfViewerNavigator.CurrentPageTextBox.

If the document is using fonts that are not embedded and are not installed on client machine the text is not displayed.
 

To reproduce: 
1. Drag and drop RadPdfViewer and RadPdfViewerNavigator
2. Load attached file from ticket
3. Click PrintPreview button from navigator and you will see that NullRefference exception is thrown. 

Workaround: 
You can set the ShowPrintPreview property to false of RadPrintViewNavigator
this.radPdfViewerNavigator1.ShowPrintPreview = false;

NullReferenceException when the document annotations are imported.